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Mr. Ken Reid

Ubuntu install

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I have just installed CAESES Free on Ubuntu 16.04 LTS (running on a MacBook pro via VMware).


When I run CAESES the GUI loads OK but the following scipt  is displayed by the terminal window.

X Error: GLXBadContext 169

  Extension:    155 (Uknown extension)

  Minor opcode: 6 (Unknown request) Fusion
  Resource id:  0x3600176
Followed by several simlar lines.
When I attempt to use the GUI 3DView .  There are no images , caves lines etc shown on the screen.
I am a newbie  can you offer any advice please.
PS (If I run the windows version via VMware on the same MacBook pro that works OK - after installing visual c
Thank you
OK I have this working know. I just needed to zoom in a lot for some reason.    

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Dear Ken,


did you installed the vmware tools in your ubuntu?


sudo apt-get install open-vm-tools open-vm-tools-desktop

The problem seems to be related to the correct gpu driver.



If you have further problems (after installing the vm-tools), submit the out put of glxgears

glxgears > glx.txt

Maybe interesting for further reading:








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Hello Konrad 
Thank you for the prompt reply.  VMtools are installed.  

Please see extract from glx.txt file


10193 frames in 5.0 seconds = 2038.517 FPS

12290 frames in 5.0 seconds = 2457.950 FPS
12291 frames in 5.0 seconds = 2458.162 FPS
11972 frames in 5.0 seconds = 2394.331 FPS
11689 frames in 5.0 seconds = 2337.659 FPS
11114 frames in 5.0 seconds = 2222.707 FPS
10483 frames in 5.0 seconds = 2096.585 FPS
11417 frames in 5.0 seconds = 2283.381 FPS
10001 frames in 5.0 seconds = 2000.135 FPS
10952 frames in 5.0 seconds = 2190.307 FPS
10500 frames in 5.0 seconds = 2099.959 FPS
Thank you
This line is also appearing in the terminal
QGLContext::makeCurrent(): Cannot make invalid context current.

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